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Finding the Fourth Proportional to 239,744.40, 360,005.40 and 161,206.80

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Solution

The fourth proportional to 239,744.40, 360,005.40 and 161,206.80 is: 242,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,744.40 : 360,005.40 = 161,206.80 : x
  2. Step 2: Convert to fraction form
    239,744.40/360,005.40 = 161,206.80/x
  3. Step 3: Cross multiply
    239,744.40x = 360,005.40 × 161,206.80
  4. Step 4: Simplify right side
    239,744.40x = 58,035,318,516.72
  5. Step 5: Solve for x
    x = 58,035,318,516.72/239,744.40
  6. Step 6: Final answer
    x = 242,071.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.